name: 'Checkout'
description: 'Checks out Electron and stores it in the AKS Cache'
inputs:
  generate-sas-token:
    description: 'Whether to generate and persist a SAS token for the item in the cache'
    required: false
    default: 'false'
  use-cache:
    description: 'Whether to persist the cache to the shared drive'
    required: false
    default: 'true'
runs:
  using: "composite"
  steps:
  - name: Set GIT_CACHE_PATH to make gclient to use the cache
    shell: bash
    run: |
      echo "GIT_CACHE_PATH=$(pwd)/git-cache" >> $GITHUB_ENV
  - name: Install Dependencies
    uses: ./src/electron/.github/actions/install-dependencies
  - name: Install Build Tools
    uses: ./src/electron/.github/actions/install-build-tools
  - name: Set Chromium Git Cookie
    uses: ./src/electron/.github/actions/set-chromium-cookie
  - name: Get Depot Tools
    shell: bash
    run: |
      if [[ ! -d depot_tools ]]; then
        git clone --depth=1 https://chromium.googlesource.com/chromium/tools/depot_tools.git

        # Ensure depot_tools does not update.
        test -d depot_tools && cd depot_tools
        touch .disable_auto_update
      fi
  - name: Add Depot Tools to PATH
    shell: bash
    run: echo "$(pwd)/depot_tools" >> $GITHUB_PATH
  - name: Generate DEPS Hash
    shell: bash
    run: |
      node src/electron/script/generate-deps-hash.js
      echo "DEPSHASH=v1-src-cache-$(cat src/electron/.depshash)" >> $GITHUB_ENV
  - name: Generate SAS Key
    if: ${{ inputs.generate-sas-token == 'true' }}
    shell: bash
    run: |
      curl --unix-socket /var/run/sas/sas.sock --fail "http://foo/$DEPSHASH.tar" > sas-token
  - name: Save SAS Key
    if: ${{ inputs.generate-sas-token == 'true' }}
    uses: actions/cache/save@1bd1e32a3bdc45362d1e726936510720a7c30a57
    with:
      path: |
        sas-token
      key: sas-key-${{ github.run_number }}-${{ github.run_attempt }}
  - name: Check If Cache Exists
    id: check-cache
    shell: bash
    run: |
      if [[ "${{ inputs.use-cache }}" == "false" ]]; then
        echo "Not using cache this time..."
        echo "cache_exists=false" >> $GITHUB_OUTPUT
      else
        cache_path=/mnt/cross-instance-cache/$DEPSHASH.tar
        echo "Using cache key: $DEPSHASH"
        echo "Checking for cache in: $cache_path"
        if [ ! -f "$cache_path" ] || [ `du $cache_path | cut -f1` = "0" ]; then
          echo "cache_exists=false" >> $GITHUB_OUTPUT
          echo "Cache Does Not Exist for $DEPSHASH"
        else
          echo "cache_exists=true" >> $GITHUB_OUTPUT
          echo "Cache Already Exists for $DEPSHASH, Skipping.."
        fi
      fi
  - name: Check cross instance cache disk space
    if: steps.check-cache.outputs.cache_exists == 'false' && inputs.use-cache  == 'true'
    shell: bash
    run: |    
      # if there is less than 35 GB free space then creating the cache might fail so exit early
      freespace=`df -m /mnt/cross-instance-cache | grep -w /mnt/cross-instance-cache | awk '{print $4}'`
      freespace_human=`df -h /mnt/cross-instance-cache | grep -w /mnt/cross-instance-cache | awk '{print $4}'`
      if [ $freespace -le 35000 ]; then
        echo "The cross mount cache has $freespace_human free space which is not enough - exiting"
        exit 1
      else
        echo "The cross mount cache has $freespace_human free space - continuing"
      fi
  - name: Gclient Sync
    if: steps.check-cache.outputs.cache_exists == 'false'
    shell: bash
    run: |
      e d gclient config \
        --name "src/electron" \
        --unmanaged \
        ${GCLIENT_EXTRA_ARGS} \
        "$GITHUB_SERVER_URL/$GITHUB_REPOSITORY"

      if [ "$TARGET_OS" != "" ]; then
        echo "target_os=['$TARGET_OS']" >> ./.gclient
      fi

      ELECTRON_USE_THREE_WAY_MERGE_FOR_PATCHES=1 e d gclient sync --with_branch_heads --with_tags -vv
      if [ "${{ inputs.is-release }}" != "true" && -n "${{ env.PATCH_UP_APP_CREDS }}" ]; then
        # Re-export all the patches to check if there were changes.
        python3 src/electron/script/export_all_patches.py src/electron/patches/config.json
        cd src/electron
        git update-index --refresh || true
        if ! git diff-index --quiet HEAD --; then
          # There are changes to the patches. Make a git commit with the updated patches
          git add patches
          GIT_COMMITTER_NAME="PatchUp" GIT_COMMITTER_EMAIL="73610968+patchup[bot]@users.noreply.github.com" git commit -m "chore: update patches" --author="PatchUp <73610968+patchup[bot]@users.noreply.github.com>"
          # Export it
          mkdir -p ../../patches
          git format-patch -1 --stdout --keep-subject --no-stat --full-index > ../../patches/update-patches.patch
          if node ./script/push-patch.js; then
            echo
            echo "======================================================================"
            echo "Changes to the patches when applying, we have auto-pushed the diff to the current branch"
            echo "A new CI job will kick off shortly"
            echo "======================================================================"
            exit 1
          else
            echo
            echo "======================================================================"
            echo "There were changes to the patches when applying."
            echo "Check the CI artifacts for a patch you can apply to fix it."
            echo "======================================================================"
            echo
            cat ../../patches/update-patches.patch
            exit 1
          fi
        fi
      fi

  # delete all .git directories under src/ except for
  # third_party/angle/ and third_party/dawn/ because of build time generation of files
  # gen/angle/commit.h depends on third_party/angle/.git/HEAD
  # https://chromium-review.googlesource.com/c/angle/angle/+/2074924
  # and dawn/common/Version_autogen.h depends on  third_party/dawn/.git/HEAD
  # https://dawn-review.googlesource.com/c/dawn/+/83901
  # TODO: maybe better to always leave out */.git/HEAD file for all targets ?
  - name: Delete .git directories under src to free space
    if: ${{ steps.check-cache.outputs.cache_exists == 'false' && inputs.use-cache == 'true' }}
    shell: bash
    run: |
      cd src
      ( find . -type d -name ".git" -not -path "./third_party/angle/*" -not -path "./third_party/dawn/*" -not -path "./electron/*" ) | xargs rm -rf
  - name: Minimize Cache Size for Upload
    if: ${{ steps.check-cache.outputs.cache_exists == 'false' && inputs.use-cache == 'true' }}
    shell: bash
    run: |
      rm -rf src/android_webview
      rm -rf src/ios/chrome
      rm -rf src/third_party/blink/web_tests
      rm -rf src/third_party/blink/perf_tests
      rm -rf src/chrome/test/data/xr/webvr_info
      rm -rf src/third_party/angle/third_party/VK-GL-CTS/src
      rm -rf src/third_party/swift-toolchain
      rm -rf src/third_party/swiftshader/tests/regres/testlists
      cp src/electron/.github/actions/checkout/action.yml ./
      rm -rf src/electron
      mkdir -p src/electron/.github/actions/checkout
      mv action.yml src/electron/.github/actions/checkout
  - name: Compress Src Directory
    if: ${{ steps.check-cache.outputs.cache_exists == 'false' && inputs.use-cache == 'true' }}
    shell: bash
    run: |
      echo "Uncompressed src size: $(du -sh src | cut -f1 -d' ')"
      tar -cf $DEPSHASH.tar src
      echo "Compressed src to $(du -sh $DEPSHASH.tar | cut -f1 -d' ')"
      cp ./$DEPSHASH.tar /mnt/cross-instance-cache/
  - name: Persist Src Cache
    if: ${{ steps.check-cache.outputs.cache_exists == 'false' && inputs.use-cache == 'true' }}
    shell: bash
    run: |
      final_cache_path=/mnt/cross-instance-cache/$DEPSHASH.tar
      echo "Using cache key: $DEPSHASH"
      echo "Checking path: $final_cache_path"
      if [ ! -f "$final_cache_path" ]; then
        echo "Cache key not found"
        exit 1
      else
        echo "Cache key persisted in $final_cache_path"
      fi
